Nathaniel Greeson helps clients solve government contracts challenges. Nathaniel represents clients in a range of government procurement issues, including bid protests, claims, disputes, audits and investigations. He has extensive experience with GAO bid protests, agency-level protests, Court of Federal Claims (COFC) bid protests, and SBA OHA size and NAICS appeals, as well as experience with agency-level requests for equitable adjustments (REA) and claims, and Boards of Contract Appeals claims.
Nathaniel advises government contractors on compliance issues, prime/subcontractor agreements and disputes, and contractor-to-agency interaction. He has extensive knowledge of the FAR and DFARs and understands how to build and maintain large and small contractor compliance programs. In addition, Nathaniel has provided full-service government contracts support for large and small contractors, and drafted and negotiated subcontractor agreements and teaming arrangements. Nathaniel has counseled clients through cybersecurity breaches and disclosures, internal and governmental investigations, and federal employee ethics rules and post-employment restrictions. Having worked directly with contracting officers, agency program officials, state and local officials, and agency finance officials, he is able to provide clients with insight into the complex process of government procurement.
Prior to joining Bradley, Nathaniel was a senior litigation advisor for the Procurement and Fiscal Law Division of the DHS FEMA Office of Chief Counsel, where he litigated bid protests before GAO and COFC, and appeals at the Civilian Board of Contract Appeals (CBCA). As agency counsel, Nathaniel advised FEMA on a variety of legal issues related to solicitation structures, technical evaluations, source selection decisions, debriefings, cure notices, and terminations. Nathaniel also managed the agency’s Suspension and Debarment program.
Listed in The Best Lawyers in America: Ones to Watch, Government Relations Practice, 2021-2025 Richard Group, LLC, B-422701.2 (2025) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of Veterans Affairs for construction of an outpatient clinic at the Coast Guard Air Station in Cape Cod, Massachusetts. DCS Corporation, B-423482.2 (2025) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of the Air Force for global mobility and special mission planning systems. I.M. Systems Group, Inc., B-422727.2, et al. (2025) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) for scientific and technical services. Telesto Group, LLC v. United States, COFC No. 24-1784 (2025) Successfully represented the intervenor-awardee in a high-profile U.S. Court of Federal Claims bid protest involving the Army’s conduct of the prototype phase of the Enterprise Business System – Convergence (EBS-C) program, which was conducted under the Army’s other transactions authority (OTA). MicroTechnologies LLC, B-423197.2, et al. (2025) Successfully represented the protester in a large GAO bid protest involving a task order award issued by the Department of the Air Force for Combined Air and Space Operations Center for communications support for the U.S. Air Forces Central Command. OBXtek, Inc., B-422057, et al. (2024) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of the Air Force for pilot instruction and related services at several domestic and overseas locations. AECOM Technical Services, Inc., B-422030, et al. (2024) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of Homeland Security, Federal Emergency Management Agency (FEMA), for program integration and support services. Clearwaters Industries Solutions, LLC, SBA No. SIZ-6311 (2024) Successfully defended the contract-awardee in a size protest appeal before the Small Business Administration (SBA) Office of Hearings and Appeals (OHA). Zolon PCS II, LLC v. United States, COFC No. 23-1420 (2024) Successfully represented the protester in a high-profile U.S. Court of Federal Claims protest involving the National Geospatial-Intelligence Agency’s issuance of a FAR deviation waiving SAM.gov registration requirements. The multiple-award contract at issue is valued at approximately $1 billion. Classic Air Charter, Inc., B-421683.5 (2024) Successfully represented the protester, Classic Air Charter, Inc., in a GAO protest challenging the evaluation of proposals and issuance of a contract award by the U.S. Department of Homeland Security, U.S. Immigration and Customs Enforcement. The contract, valued at approximately $3.6 billion, was for charter flight services to be performed as part of the ICE Air Operations program. The KACE Company, LLC v. United States, COFC No. 23-387C (2023) Successfully represented the intervenor-awardee in a bid protest before the U.S. Court of Federal Claims involving a United States Secret Service solicitation for instructional services and training in digital forensics and cyber investigations. STG International, Inc.; North East South West Healthcare Solutions, LLC; COFC Nos. 23-47C; 23-175C (2023) Successfully represented the protester, North East South West Healthcare Solutions, LLC, in a bid protest before the U.S. Court of Federal Claims involving a medical staffing procurement by the U.S. Immigration and Customs Enforcement, which is valued at approximately $2.6 billion. Facility Services Management, Inc., B-420102.3 (2022) Successfully represented the intervenor-awardee, Valiant Government Services, LLC, in GAO bid protest involving a task order issued by the U.S. Army Corps of Engineers for operation and maintenance services supporting medical facilities at Travis Air Force Base, California. J.E. McAmis, Inc., B-420310 (2022) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of the Army, Army Corps of Engineers, for the Central Everglades Planning Project. Battelle Memorial Institute, B-420403, et al. (2022) Successfully represented the intervenor-awardee in a GAO bid protest involving a solicitation issued by the Department of the Navy for architect/engineering (A/E) services. Medline Industries Inc. and Concordance Healthcare Solutions, LLC v. United States, COFC Nos. 21-1174 & 21-1098 (2021) Successfully represented the lead protester, Concordance Healthcare Solutions, LLC, in a high-profile U.S. Court of Federal Claims bid protest challenging the U.S. Department of Veterans Affairs’ decision to non-competitively transfer its entire Medical-Surgical Prime Vendor (MSPV) program, worth an estimated $10 billion to $27 billion, to the Defense Logistics Agency. Tuba Group, B-419733 (2021) Successfully represented the intervenor-awardee, Quality Innovation, Inc., in a GAO bid protest involving a General Services Administration contract award for critical support services to GSA’s National Customer Services Center.
